ZALO King black - Thrusting vibrator, 40 strokes/sec

Forty strokes per second over a fifteen-millimetre stroke: the King is the only Zalo in the catalogue with a powered thrusting motor, and the only one to publish a noise level — fifty decibels at most. It measures 302 by 58 by 61 mm for 550 grams, combines four vibration modes with eight thrust modes, and asks four hours of charging for two of use.

Why choose this model?

• 40 strokes per second over a 15 mm stroke, two figures published together.
• 50 dB stated: the only quantified noise level in the range at this catalogue.
• Two independent motors: four vibration modes, eight thrust modes.
• 550 g for the device, a 1400 mAh battery, four hours of charging.
• Waterproofing stated with no rating, where the Bayek, Kyro and Bess 2 give IPX4.

How to use it

1. Allow four hours of charging before first putting it into service.
2. Allow plenty of water-based lubricant: a thrusting device uses more of it.
3. Start with the vibration modes alone, with no thrust.
4. Bring in the thrust at the lowest frequency, never straight to forty.
5. Stop at once on any pain: a thrusting motor does not give way.

The Bess 2 stays with vibration alone, without a thrusting motor, and the Kyro wand works externally. See also understanding materials and positive sexuality.

Care and precautions

Silicone and ABS: water-based lubricant only — the manufacturer itself advises against silicone, which attacks the surface. Wash in warm soapy water before and after each use, dry fully, store away from other silicones. The ratings across this range go no further than splashes: nothing goes in a bath. The battery charges over USB and never plugs into a damp device. No anal use without a firm grip and a clear base. Stop at any pain or irritation, and seek medical advice if discomfort persists after stopping. This is not a medical device.

Frequently asked questions

Is it waterproof?

The manufacturer calls it waterproof without giving a rating, where three other Zalo references state IPX4. Treat it as splash resistant.

Is forty strokes per second a lot?

It is the maximum stated frequency, over fifteen millimetres of stroke. The eight thrust modes go well below it.

Four hours of charging?

Yes, for a stated two hours of use and a 1400 mAh battery.

Can fifty decibels be heard?

It is the published maximum, roughly a running fridge. No other Zalo publishes that figure.

What material is it?

Dow Corning liquid silicone and ABS, set with a Swarovski crystal. Water-based lubricant only.

SoPigalle tip: a thrusting motor is judged on stroke, not frequency. Fifteen millimetres is short, and the stated travel only happens if the device is held firmly: left loose, it recoils as much as it advances.